Pali mitundu iwiri ya mayeso mukamayang'ana COVID-19: kuyezetsa magazi, komwe kumafufuza matenda apano, ndi kuyesa kwa antibody, komwe kumadziwika ngati chitetezo chamthupi chanu chimayankha matenda omwe adalipo kale. Chifukwa chake, kudziwa ngati muli ndi kachilomboka, zomwe zikutanthauza kuti mutha ...
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